Handheld exercise device



FIG. 1 is a front view of a handheld exercise device according to my new design;

FIG. 2 is back view of the device of FIG. 1;

FIG. 3 is a left plan view of the device of FIG. 1;

FIG. 4 is a right plan view of the device of FIG. 1;

FIG. 5 is a top plan view of the device of FIG. 1;

FIG. 6 is a bottom plan view of the device of FIG. 1;

FIG. 7 is a front perspective view of the device of FIG. 1; and,

FIG. 8 is a back perspective view of the device of FIG. 1. 

The ornamental design for a handheld exercise device, as shown and described. 